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Full text of "The manufacture and properties of iron and steel"

METALLURGY OF IRON AND 'STEEL.
"In further proof of'this, drillings were taken from the three annealed bars of-' heat 10,168, which showed the highest tensile strength, and from the three which were weakest. The results are given in Table XIII-J.
The-ingots from which these rods were made measured 16"x20" in 'cross-section and weighed about two tons each.   In' the case "of' angles, experiments were made at Steelton on ingots having a cross-section 24/'xS6".and weighing five tons.   Blooms from several such ingots were stamped so as to denote from what jiart of the
TAB-LE XIII-I.                       '•
Eivet Rounds from Different Parts of the Same Heats.
All steels were made by The Pennsylvania jSteel-'Co.
0) fc»		S	Ultimate		Elastic limit;		Elongation in		Reduction of	
ll	O	ft O	strength; pounds jper square inch.		pounds per square inch.		,8 inches; per cent.		area; per cent.	
m 'g			'	•d		•sT		"•0		1  d
»-(   43 °fl	O	w	i .	1	i	a> a!	,. i	d> 1	•i	1
•d &)	1	li	s	§   -	a •g	V .	'  ,2	I	2 ei	op
^,_	s	0	ifi     .	3   , .	%	•3	*   •	•<	. &	•4
5"			• 61260	55640	48960	34420	81.25'	80.00	60.80	66.24
4-J       .		"isT	60950	54760.	42430	84840	82:00	29.50	62.78	65.91
§•§	['	s .	60800	62700	42790	88800	82.0C	31.50	65.26	68.88
o> g	.	*5   fl PQ	60720	65130	48600	84700	81.26*	82.50	66.76	67.87
1 1 rt	"§	II S cj	60210	64600	41160	'84040	80.50	30.76	62.60	65.68
s s	s	3	60010	1  64360	41720	34040 .	80.50	'82.50	66.76	67.74
li		,—<a$ j3	59970	64820	40770	88840	80.50	82.00	63.97	64.92
	«?J		59710	54340	40900	84820	32.50	82:50	63.43	68.78'
2 °"		II lf°	59620	64040	40920	84120	83.00	80.00	57.70	66.89
•^f1		Pu Qu	59300	64600	40320	84080	•   84.50	83.00	65.96	68.05
.AT	er	age,	60260.	64500   1    41860		84220	81.80	31.42	63.55	66.54
j		y£j	56040	49990	87710	80200	83.25	84.75	65.73	66.70
"p   00		GQ ||	66000	50520	87800	80700	85.00	84.25	64.26	69.18
CD    CJ		AT^i	65520	50520	' 87890	81750	.    81.50	85.75 '	61.86	60A4
d §	,ij	ST.	65420	51000	87360	81165	81.75	84.50	62.18	67.97
II	•H	4J,	: 55030 65040	49460 61170	86180 87980	80910 81475	83.00 84.75	84.75 84.50	66.08 65.48	68.70 69.50
o t	\»		54980	50400	87710	80665	83.00	85.60	69.64	69.68
		cTw	54950	60640	87800	31345	81.75	,85.00	67.02	69.28.
2 £j		'ir'Tl'	64860	60520	87980	81970	88.00	85.00'	64.09	68.04
•?  -,		pfe	64720	60940	,86830	81900	88.75	85.75	55.25	67.85
' A-v	er	age,	65260	50520	87520	81210	83.07	84.97	62.15	68.88
4		1	54000	48870	86280	80990	83.75	88.75	62.80	70.69
1 -§		JU ••»	68500	49460	85960	81220	84.50	36.25	68.82	68.27'
49 -™,		Off   •	63400	48520	85710	81520	88.50	85.50	64.05,	69.28
S a	id	s.iid	"' 62690	48290	85880	81190	83.75	82.50	66.49	68.77
	0	1? rj ~	68300	, 48460	. 86060	81870	.  83.75	34.25	«1.67	68,14
H    A	fl	w^a	62020	49760	85080	82710	88.75	86.25	68.27	67.62
s* s	SCO	.-••O	62620	48640	85080.	80490	83.75	86.25	65.29,	69.43
s*		Sg	62620	48520	85950	80590	81.25	85.00	62.04	69.49
13 3			61910 .	49230	86230	82580	82.25	84.50	68.68	67.98
4j ""		0	61900	48410	84840	80350	83.76	83.75	68.72	66.95
AT	•ei	•»ge,	62860	48820	85700	81300	83.40	84.80	63.67	68.64